Underground gasifier pre-control structure, gasifier and gasification method

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12134966
APP PUB NO 20230008988A1
SERIAL NO

17786596

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Abstract

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An underground gasifier pre-control structure includes a flame retardant injection system. The flame retardant injection system includes a flame retardant injection shaft pipe channel drilled from ground to a coal seam and a flame retardant injection channel located in the coal seam. The flame retardant injection channel includes a first flame retardant injection channel and a second flame retardant injection channel at both sides of each gasifier and a third flame retardant injection channel located in a horizontal direction of an adjacent gasifier. The first flame retardant injection channel includes a horizontal section along a strike of the coal seam and a bypass section offset toward the gasifier. The flame retardant injection system forms a wet coal wall in the coal seam to achieve pre-control for the gasifier. The pre-control structure wets the coal masses at both sides of the gasifier and the gasifier does not spread toward both sides.

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Patent Owner(s)

Patent OwnerAddress
SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGYNO 579 QIANWANGANG ROAD XIN'AN STREET HUANGDAO DISTRICT QINGDAO CITY SHANDONG PROVINCE CHINA 266590 SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY QINGDAO CAMPUS QINGDAO CITY SHANDONG PROVINCE 266590

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huang, Jing Qingdao, CN 217 2086
Wen, Zhijie Qingdao, CN 8 0
Xiao, Peng Qingdao, CN 99 700
Zhang, Jingkai Qingdao, CN 9 60
Zhu, Hengzhong Qingdao, CN 1 0

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